source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "key-engraver.hh"
-#include "key-item.hh"
-#include "command-request.hh"
-#include "local-key-engraver.hh"
-#include "musical-request.hh"
-#include "local-key-item.hh"
-#include "bar.hh"
-#include "timing-translator.hh"
+
+
+#include "event.hh"
+#include "item.hh"
+#include "bar-line.hh"
#include "staff-symbol-referencer.hh"
+#include "translator-group.hh"
+#include "engraver.hh"
+#include "pitch.hh"
+#include "protected-scm.hh"
+#include "clef.hh"
/*
- this is a large mess. Please clean this to use Basic properties and
- Scheme data structs.
+ TODO: The representation of key sigs is all fucked.
*/
-Key_engraver::Key_engraver ()
+/**
+ Make the key signature.
+ */
+class Key_engraver : public Engraver
+{
+ void create_key (bool);
+ void read_ev (Key_change_ev const * r);
+ Key_change_ev * key_ev_;
+ Item * item_;
+
+public:
+ TRANSLATOR_DECLARATIONS(Key_engraver);
+
+protected:
+ virtual void initialize ();
+ virtual void finalize ();
+ virtual bool try_music (Music *ev);
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void process_music ();
+ virtual void acknowledge_grob (Grob_info);
+};
+
+
+void
+Key_engraver::finalize ()
{
- item_p_ = 0;
- do_post_move_processing ();
}
-bool
-Key_engraver::key_changed_b () const
+
+Key_engraver::Key_engraver ()
{
- return keyreq_l_ ;
+ key_ev_ = 0;
+ item_ = 0;
}
+
void
Key_engraver::create_key (bool def)
{
- if (!item_p_)
+ if (!item_)
{
- item_p_ = new Key_item ( get_property ("basicKeyProperties"));
-
- item_p_->set_elt_property ("c0-position", gh_int2scm (0));
+ item_ = make_item ("KeySignature");
+ item_->set_grob_property ("c0-position",
+ get_property ("centralCPosition"));
+
// todo: put this in basic props.
- item_p_->set_elt_property ("old-accidentals", old_accs_);
- item_p_->set_elt_property ("new-accidentals", new_accs_);
+ item_->set_grob_property ("old-accidentals", get_property ("lastKeySignature"));
+ item_->set_grob_property ("new-accidentals", get_property ("keySignature"));
- Staff_symbol_referencer_interface st (item_p_);
- st.set_interface ();
-
- SCM prop = get_property ("keyOctaviation");
- bool multi = to_boolean (prop);
-
- if (multi)
- item_p_->set_elt_property ("multi-octave", gh_bool2scm (multi));
-
- announce_element (Score_element_info (item_p_,keyreq_l_));
+ announce_grob(item_, key_ev_ ? key_ev_->self_scm() : SCM_EOL);
}
if (!def)
- item_p_->set_elt_property ("visibility-lambda",
- scm_eval (ly_symbol2scm ("all-visible")));
-
+ {
+ SCM vis = get_property ("explicitKeySignatureVisibility");
+ if (gh_procedure_p (vis))
+ item_->set_grob_property ("break-visibility",vis);
+ }
}
bool
-Key_engraver::do_try_music (Music * req_l)
+Key_engraver::try_music (Music * ev)
{
- if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
+ // if (Key_change_ev *kc = dynamic_cast <Key_change_ev *> (ev))
+ if (ev->is_mus_type ("key-change-event"))
{
- if (keyreq_l_)
- warning (_ ("FIXME: key change merge"));
- keyreq_l_ = kc;
- read_req (keyreq_l_);
+ if (!key_ev_)
+ {
+ /*
+ do this only once, just to be on the safe side.
+ */
+ key_ev_ = dynamic_cast<Key_change_ev*> (ev); // UGH.
+ read_ev (key_ev_);
+ }
+
return true;
}
return false;
}
+
void
-Key_engraver::acknowledge_element (Score_element_info info)
+Key_engraver::acknowledge_grob (Grob_info info)
{
- if (dynamic_cast <Clef_change_req *> (info.req_l_))
+ if (Clef::has_interface (info.grob_))
{
SCM c = get_property ("createKeyOnClefChange");
if (to_boolean (c))
{
create_key (false);
-
}
}
- else if (dynamic_cast<Bar *> (info.elem_l_)
- && gh_pair_p (new_accs_))
+ else if (Bar_line::has_interface (info.grob_)
+ && gh_pair_p (get_property ("keySignature")))
{
create_key (true);
}
-
}
+
void
-Key_engraver::do_process_music ()
+Key_engraver::process_music ()
{
- if (keyreq_l_)
- {
- create_key (false);
- }
+ if (key_ev_ ||
+ get_property ("lastKeySignature") != get_property ("keySignature"))
+ create_key (false);
}
+
void
-Key_engraver::do_pre_move_processing ()
-{
- if (item_p_)
+Key_engraver::stop_translation_timestep ()
+{
+ if (item_)
{
- typeset_element (item_p_);
- item_p_ = 0;
+ typeset_grob (item_);
+ item_ = 0;
}
}
-/*
- TODO. Use properties; and this is too hairy.
- */
void
-Key_engraver::read_req (Key_change_req const * r)
+Key_engraver::read_ev (Key_change_ev const * r)
{
- if (!r->key_)
+ SCM p = r->get_mus_property ("pitch-alist");
+ if (!gh_pair_p (p))
return;
-
- key_.clear ();
- SCM prop = get_property ("keyOctaviation");
- bool multi = to_boolean (prop);
-
- SCM n = SCM_EOL;
- if (r->key_->ordinary_key_b_)
- {
- int no_of_acc = r->key_->ordinary_accidentals_i ();
-
- // Hmm, can't these be handled/constructed by Key_change_req?
- if (no_of_acc < 0)
- {
- int accidental = 6 ; // First accidental: bes
- for ( ; no_of_acc < 0 ; no_of_acc++ )
- {
- Musical_pitch m;
- m.accidental_i_ = -1;
- m.notename_i_ = accidental;
- if (multi)
- key_.set (m.octave_i_, m.notename_i_, m.accidental_i_);
- else
- key_.set (m.notename_i_, m.accidental_i_);
-
- SCM pair = gh_cons (gh_int2scm (m.notename_i_),
- gh_int2scm (m.accidental_i_));
- n = gh_cons (pair, n) ;
- accidental = (accidental + 3) % 7 ;
- }
- }
- else
- {
- int accidental = 3 ; // First accidental: fis
- for ( ; no_of_acc > 0 ; no_of_acc-- )
- {
- Musical_pitch m;
- m.accidental_i_ = 1;
- m.notename_i_ = accidental;
- if (multi)
- key_.set (m.octave_i_, m.notename_i_, m.accidental_i_);
- else
- key_.set (m.notename_i_, m.accidental_i_);
-
- SCM pair = gh_cons (gh_int2scm (m.notename_i_),
- gh_int2scm (m.accidental_i_));
- n = gh_cons (pair, n);
-
- accidental = (accidental + 4) % 7 ;
- }
- }
- }
- else // Special key
+ SCM n = scm_list_copy (p);
+ SCM accs = SCM_EOL;
+ for (SCM s = get_property ("keyAccidentalOrder");
+ gh_pair_p (s); s = ly_cdr (s))
{
- for (int i = 0; i < r->key_->pitch_arr_.size (); i ++)
+ if (gh_pair_p (scm_member (ly_car (s), n)))
{
- Musical_pitch m_l =r->key_->pitch_arr_[i];
- if (multi)
- key_.set (m_l.octave_i_, m_l.notename_i_, m_l.accidental_i_);
- else
- key_.set (m_l.notename_i_, m_l.accidental_i_);
-
- SCM pair = gh_cons (gh_int2scm (m_l.notename_i_),
- gh_int2scm (m_l.accidental_i_));
- n = gh_cons (pair, n);
+ accs = gh_cons (ly_car (s), accs);
+ n = scm_delete_x (ly_car (s), n);
}
}
-
- old_accs_ = new_accs_;
- new_accs_ = n;
+ for (SCM s = n ; gh_pair_p (s); s = ly_cdr (s))
+ if (gh_scm2int (ly_cdar (s)))
+ accs = gh_cons (ly_car (s), accs);
+
+ daddy_trans_->set_property ("keySignature", accs);
+ daddy_trans_->set_property ("tonic" ,
+ r->get_mus_property ("tonic"));
}
+
void
-Key_engraver::do_post_move_processing ()
+Key_engraver::start_translation_timestep ()
{
- keyreq_l_ = 0;
- old_accs_ = SCM_EOL;
+ key_ev_ = 0;
+ daddy_trans_->set_property ("lastKeySignature", get_property ("keySignature"));
+}
+
+
+void
+Key_engraver::initialize ()
+{
+ daddy_trans_->set_property ("keySignature", SCM_EOL);
+ daddy_trans_->set_property ("lastKeySignature", SCM_EOL);
+
+ Pitch p(0,0,0);
+ daddy_trans_->set_property ("tonic", p.smobbed_copy ());
+
}
-ADD_THIS_TRANSLATOR (Key_engraver);
+ENTER_DESCRIPTION(Key_engraver,
+/* descr */ "",
+/* creats*/ "KeySignature",
+/* accepts */ "key-change-event",
+/* acks */ "bar-line-interface clef-interface",
+/* reads */ "keySignature lastKeySignature explicitKeySignatureVisibility createKeyOnClefChange keyAccidentalOrder keySignature",
+/* write */ "lastKeySignature tonic keySignature");
projects / lilypond.git / blobdiff